GRB has engineering experience in Western Canada and has participated in various projects for clients ranging from junior to senior oil and gas producers. Some of these clients include:

• Action Energy
• Addison Energy Inc./N.A.L.
• AEC - AEUB
• Alta Gas
• Altana
• Anadarko Canada Corporation
• Apache Canada Ltd.
• APF Energy
• Argonauts
• Atlas Energy Ltd.
• Avalon Exploration
• BenJaka Exploration Inc.
• Blaze Energy Ltd.
• Blue Parrot Energy Inc.
• Bonavista Petroleum Ltd.
• Bronco Energy Ltd.
• C3 Resources Ltd.
• Campion
• Can-Able Energy Ltd
• Canetic Resources Inc.
• Cavell
• Claymore Energy
• Connacher Oil and Gas Limited
• Connaught Energy
• ConocoPhillips Canada
• Crestar
• Crew Energy Inc.
• Cypress
• Defiant Resources Corporation
• Devlan
• Devon Canada Corporation
• Dominon Exploration Canada Ltd.
• Duke Energy
• Durness
• Dyno Energy Ltd.
• E3 Energy
• E4 Energy Inc.
• EnCana Corporation
• EnCana Oil & Gas Partnership
• Espoir Exploration Corp
• Evergreen Resources
• Fortress Energy Inc.
• Great Plains Exploration Inc.
• Greenfield Resources Ltd.
• Havre Pipeline Co.
• Hunt Oil Company of Canada Inc.
• Husky Energy
• Interquest Incorporated
• Kerr Energy
• Kinloch Resources
• Lario Oil & Gas
• Leland
• Luke Energy Ltd.
• MarkWest
• Maverick Oil and Gas
• MGV Energy Inc.
• N.A.L Resources Ltd.
• Newport Petroleum Ltd.
• Nycan
• Omers Energy Inc.
• Onyx Energy
• Optimus Energy Ltd.
• Outrider Energy Ltd.
• PanCanadian
• Paramount
• Pearl Exploration and Production Ltd.
• Pengrowth Corporation
• Penn West Petroleum Ltd.
• Peregrine Energy Ltd.
• Petrofund Energy Trust
• Pioneer Natural Resources Canada
• Plains Marketing Canada, L.P.
• Platinum Energy Services Corp.
• PrimeWest
• Progress Energy Ltd.
• Prosolve Consulting Ltd.
• Questor Technology Inc.
• Quicksilver Resources Canada Inc.
• Redwood
• Richland
• Rife Resources Ltd.
• Rising Tide
• Rock Well
• Rockyview Energy
• Romaro
• Royln Environmental Services
• Samson
• Seneca Energy Canada Inc.
• StarPoint
• Strike Petroleum Ltd.
• Stylus Exploration Inc./Kinloch Resources
• Summit Resources
• Terra Energy Corporation
• TKS Controls Ltd.
• Triton Energy Corporation
• Verge Energy
• Vero Energy
• Watford
• West Rock Energy Consultants Ltd.
• Whitehall Energy Ltd.
• Yangarra Resources Inc.